1.Steady magnetic propeties 2.Various shaped:ARC,Round,Block,Ring,etc 3.Grade:N35 to N52,M,H,SH, ... UH,EH,AH,etc 4.RoHS,SGS Sintered NdFeB magnet 1.Certificate:TS16949,ISO,SGS2 ... ,33H-48H,30SH-45SH,30UH-38UH and 30EH-35EH;4. Shape: ring,block,disc,bar and so on5. Size: according to customers ...